58123909 ÷ 131 
We want to figure out the number of times 58123909 can be divided by 131.

Going ahead to step 1:
The number 131 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 131

Going ahead to step 2:
If we divide 58 by 131, we get 0 and a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 58, we get 58.
Fetch the next digit (1) from the dividend, attach it to 58 and continue: 581 / 131

Moving on to step 3:
131 goes into 581 4 times with a remainder of 57.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 524 away from 581, we end up with 57.
Grab the next digit (2) from the dividend, add it to 57, then carry on: 572 / 131

On to step 4:
When dividing 572 by 131, we get 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 44.0
Subtract 524 from 572 to get 48.
Take the next digit (3) from the dividend and append it to 48, then repeat: 483 / 131

Let's proceed to step 5:
131 goes into 483 3 times with a remainder of 90.
Put 3 as the next digit of the answer. 
Result so far: 443.0
Deduct 393 from 483 and we're left with 90.
Append the next digit (9) from the dividend to 90 and continue with: 909 / 131

On to step 6:
If we divide 909 by 131, we get 6 and a remainder of 123.
Put 6 as the next digit of the answer. 
Result so far: 4436.0
If we subtract 786 from 909, we get 123.
Fetch the next digit (0) from the dividend, attach it to 123 and continue: 1230 / 131

Step 7:
The number 131 fits into 1230 9 times, leaving a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 44369.0
Subtracting 1179 from 1230 leaves us with 51.
Bring next digit (9) of the dividend behind the 51 and repeat the process: 519 / 131

Step 8:
If we divide 519 by 131, we get 3 and a remainder of 126.
Write down 3 as next digit of the result. 
Result so far: 443693.0
The remainder is 126 after subtracting 393 from 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 9:
If we divide 1260 by 131, we get 9 and a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 443693.9
Subtracting 1179 from 1260 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 10:
131 goes into 810 6 times with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 443693.96
Subtracting 786 from 810 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
131 goes into 240 1 times with a remainder of 109.
Write down 1 as next digit of the result. 
Result so far: 443693.961
Subtracting 131 from 240 leaves us with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Advancing to step 12:
131 can be fit into 1090 8 times, resulting in a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 443693.9618
Subtract 1048 from 1090 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
131 goes into 420 3 times with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 443693.96183
Subtracting 393 from 420 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 14:
If we divide 270 by 131, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 443693.961832
If we subtract 262 from 270, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 15:
If we divide 80 by 131, we get 0 and a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 443693.961832
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 16:
If we divide 800 by 131, we get 6 and a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 443693.96183206
Deduct 786 from 800 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 443693.96183206, with a leftover of 1.4e-08.